← All Indices / Index Descriptions

Index Descriptions

What each index tracks and how it works

LEGO

Brick 500 Index

LEGO sets often appreciate after retirement, and the sealed secondary market is large enough to be tracked systematically. The Brick 500 ranks every eligible sealed set by its BrickLink average sale price and holds the top 500, with one condition: a set must have at least 5 units sold in the trailing six months to qualify. Catalog data comes from Rebrickable; price data from BrickLink. Equal-weight, quarterly rebalance.

View live index →

Brick Prime 150 — Premium LEGO Sets Index

The Brick Prime 150 tracks the premium head of the sealed LEGO secondary market. It uses the same methodology as the LEGO-500 — ranking every eligible sealed set by its BrickLink average sale price, requiring at least 5 units sold in the trailing six months — but holds only the top 150 most expensive sets. Its members are always a subset of the LEGO-500. Equal-weight, quarterly rebalance.

View live index →

Brick Ideas Index (IDEA75) — Ideas/Creator Expert/Icons Sets Index

The Brick Ideas Index tracks the premium end of LEGO's "big build" display-piece lineage: sets from the fan-designed LEGO Ideas (formerly CUUSOO) line, plus Creator Expert and its 2022 rebrand, Icons. It restricts the candidate pool to these three themes before ranking, and holds the top 75 most expensive qualifying sets. Because this themed universe is smaller than the full LEGO-500 catalog, the index may launch with fewer than 75 constituents and grow toward that target over time. Equal-weight, quarterly rebalance.

View live index →

LEGO Movies Index (MOVIE100) — Licensed Film Franchise Sets Index

The LEGO Movies Index tracks sealed LEGO sets from 20 confirmed licensed film franchises (Star Wars, Harry Potter, Jurassic Park/World, and more). It restricts the candidate pool to these franchises before ranking, and holds the top 100 most expensive qualifying sets. Superhero, Disney-non-Star-Wars, Ninjago, and TV-only franchises are explicitly excluded. Equal-weight, quarterly rebalance.

View live index →
Private Companies

AI 20 Index

Private AI companies don't file public financials, so there's no clean rules-based way to rank them. The AI 20 is discretionary: the editorial committee selects 20 leading private AI companies and weights them by market value using Yahoo Finance data. Reviewed semi-annually.

View live index →

Private Companies Index

The Private Companies Index takes the 50 highest-valued private companies tracked by Yahoo Finance's screener and weights them by reported valuation. No editorial discretion — selection is fully rule-based. Semi-annual rebalance.

View live index →
Trading Cards

Pok 250 List Price Index

The Pok 250 tracks the collectible Pokémon card market by ranking every card in the TCG on TCGplayer market price and holding the top 250. When a card exists in both holofoil and normal prints, the holofoil price takes priority. All 250 positions are held at equal weight. The roster is refreshed quarterly using data from the Pokémon TCG API.

View live index →

MTG 300 List Price Index

Wizards of the Coast has formally committed never to reprint cards on the Magic: The Gathering Reserve List, which makes it the most collectible corner of the TCG market. The MTG 300 holds the 300 most expensive Reserve List cards by Near Mint market price on TCGplayer, sourced via Scryfall. Equal-weight, quarterly rebalance.

View live index →
Vehicles

VROOM — Classic Car Auction Index

Collector cars trade at auction, not on exchanges, so price discovery is fragmented across dozens of platforms. VROOM pulls completed sale results from four major auction platforms, groups them into cohorts by year/make/model/trim, and holds up to 500 cohorts — restricted to vehicles at least 20 years old. Equal-weight, semi-annual rebalance.

View live index →

MUSCLE — American Muscle Cars Index

The MUSCLE index tracks the golden era of American performance: Mustangs, Camaros, GTOs, Chargers, and their contemporaries built between 1960 and 1979. Only recognized muscle nameplates from eight American makes are eligible, making this the most focused pure-horsepower index on the platform. Draws from the same verified auction-sale database as VROOM. Equal-weight, semi-annual rebalance.

View live index →

GERM — German Collectibles Index

German engineering has produced some of the most collectible cars in history. GERM tracks Porsche, BMW, Mercedes-Benz, Audi, and Volkswagen across all models — from 911 variants and M-series BMWs to air-cooled Beetles — restricted to vehicles at least 20 years old. Equal-weight, semi-annual rebalance.

View live index →

USAC — American Classics Index

The broadest American vehicle index on the platform: all US makes from the 1950–1979 era — coupes, convertibles, wagons, full-size sedans, muscle cars, and everything between. USAC captures the full sweep of mid-century American automotive culture across 18 brands from Cadillac to Willys. Muscle-era models will overlap with MUSCLE; both indices are independent. Equal-weight, semi-annual rebalance.

View live index →

BRIT — British Sports Cars Index

From Jaguar E-Types to Lotus Sevens, MG Midgets to Aston Martin DB-series, BRIT captures the character-driven British sports car tradition. Eligible makes: Jaguar, MG, Austin-Healey, Triumph, Lotus, Morgan, Sunbeam, Aston Martin, TVR, AC, and Caterham — all models, all years ≥20 old. Equal-weight, semi-annual rebalance.

View live index →

JDM — JDM Sports Cars Index

Japanese sports and performance cars have seen explosive collector demand. JDM tracks recognized performance nameplates from Honda, Mazda, Datsun/Nissan, Toyota, Subaru, Mitsubishi, Lexus, and Acura — RX-7s, Supras, Skylines, NSXs, MR2s, and more — while excluding economy and utility models from the same brands via a model allowlist. Equal-weight, semi-annual rebalance.

View live index →
Collectibles (eBay)

Comic 616 — Comic Book Secondary Market Index

The Comic 616 covers the graded and raw comic book secondary market. Each position is a cohort defined by publisher, series, issue number, publication year, and grade bucket. eBay completed listings are the price source. 616 cohorts, equal-weight, quarterly rebalance.

View live index →

Ball 300 — Graded Baseball Card Index

Graded baseball cards have a defined condition hierarchy, which makes them more tractable than most collectibles. The Ball 300 holds the 300 most valuable graded card cohorts by spot price, sourced from eBay's Sports Trading Cards category. Equal-weight, quarterly rebalance.

View live index →

Sneaker 5000 — DS/VNDS Sneaker Index

Sneaker resale prices vary significantly by condition, which makes broad market indices noisy. The Sneaker 5000 restricts to DS and VNDS listings only, sourced from eBay Athletic Shoes completed sales. 5,000 cohorts, equal-weight, quarterly rebalance.

View live index →

Watch 1000 — Luxury Watch Index

The Watch 1000 tracks active Chrono24 listing prices for the 1,000 most valuable watch cohorts globally. A cohort needs at least five active listings to qualify, which filters out illiquid references. Equal-weight, semi-annual rebalance.

View live index →